A neural network ( nn ) is a model with high non - linearity , which is able to uniformly approximate any sophisticated nonlinear relationships in any accuracy . so in recent years , there has been much activity in how to apply nn to system identification 神经网络是一种高度非线性的模型，具有充分逼近任意复杂非线性关系的能力，因此近年来，基于神经网络的系统辨识技术成为辨识领域的研究热点之一。
The very recent results of blind equalization and identification of the tv dispersive channels in wireless communications are reviewed at first in detail , the drawbacks of them are pointed out and the basic idea overcoming them are suggested , which is the motivation of this thesis 论文首先回顾了目前时变色散信道的盲均衡与盲辨识技术的研究进展，指出了其中存在的问题和解决的思路，从而指明了本论文研究的动机和出发点。
Now it may come the headache - how will you manage such large number of business cards in an easy way ? tell you , q - scan a8 pocket size scanner is just your right choice to get rid of your headache ! ! the intelligent biz - card ocr easily categorizes and saves the business card information to your pc and pda 名片管理软体的发展，就是利用文字辨识技术，透过扫瞄器将名片上的印刷文字，转换成可以编辑处理的文字，再进行自动分类管理，并永久地储存起来，一方面为了日后查寻方便，二方面可以将整批资料分享传送到pda的通讯栏上，带著走！
This eye tracker can accurately track every tiny eye movements during lasik surgery ; iris recognition features the safest measure as no two irises are identical , this ensures the correct eye is treated . these advance technologies in turn maximize the chance of having best surgical outcomes 这眼球追踪器能准确地追踪手术时眼球的轻微移动由于没有两只眼睛的虹膜是完全相同的，虹膜辨识技术就可准确地辨识不同的虹膜，这安全措施确保眼睛得到正确的治疗，令手术更精确和安全，视力效果更理想。
Using for reference the design method of transverse filer , we presented the way to resolve the control constant , through which we could realize the stabilizing control speedy if initial values of chaotic system was given . in designing the sliding mode controller , adaptive control theory and system identification method were used in system , with which we can realize the synchronous control of uncertain chaotic dynamical system . 4 在滑动模态控制器设计过程中，从非线性控制策略的角度出发，将自适应技术、系统辨识技术应用于混饨系统的同步控制，提出了一种基于参数估计的自适应混饨同步控制方法，针对混饨动力学系统参数未知的情况，自适应估计系统参数，控制混炖系统同步。
Secondly , a series of novel detection schemes are presented creatively . furthermore , this paper proposes the joint detection scheme for rotor bar breaking and stator winding inter - turn short circuit fault in squirrel cage asynchronous motors , for the first time . meanwhile , a parameter identification technique based approach to detect stator / rotor over - heating fault is also presented 在此基础上，提出了异步电动机转子断条与定子绕组匝间短路故障检测新方法；首次提出了笼型异步电动机转子断条与定子绕组匝间短路故障联合检测方法；基于参数辨识技术，提出了异步电动机定转子绕组过热故障检测新方法。
The dissertation first analyzes the applied signification of pc communicating with dcs , then studies theory of interface ciu and methods of communication through it . the paper compares several identification methods and selects three methods based on ls , and discusses the methods to analyze the control system . at last , three functions above are synthesized into software 论文分析pc机与分散控制系统通信，实现数据的延伸与共享所具有的实用意义；研究了计算机接口ciu的通信原理以及使用通信接口与系统进行通信的各种方案；深入学习系统辨识技术，采用基于最小二乘的三种经典方法对采集到的数据进行模型辨识；对系统分析方法进行了初步探讨。
The special area of foam was detected for the compound tray of 20 % free area by ccd camera and computer identification technology of gas and liquid two phase flow in column . with the rectangular plexiglass tower in 200mm x 300mm , and it ' s correlation was obtained . this experiment offered data of special area for establishing mass transfer model of foam 在200mmx300nun的有机玻璃方塔内，以空气水为介质，采用ccd拍摄技术和塔内气液两相流计算辨识技术，测定了开孔率为20的复合塔板上泡沫层的气液接触比表面积，并建立了关联式。
Applying the system identification technique in the test of excitaion system , the excitation system models of a hydro unit and a thermal unit are established with pss / e . with those models , power system analysis is also accomplished . the simulation results are compared with the record waveforms 将系统辨识技术应用于励磁系统参数辨识现场试验，建立了一个大型火电厂和一个大型水电厂的pss e的实测的励磁系统模型，进行了系统分析，并和实际故障录波进行了对比，还对风电场接入系统作了初步的分析。
The paper contraposes some problems such as the widening line , the narrowing line , the unequal color , the parting line , redundant printing ink and various cases of noises in the bar code image input etc , on which the algorithms of the bar code digital image processing and the algorithms of the bar code image identification are put forward . accordingly the method of correcting errors which bases on the bar code image identification is established 分析了瓦楞纸箱条码印刷中存在的问题，针对条码线条展宽、细化、着色不均、断条、冗余墨渍以及条码采集中可能出现的噪声等问题，文中提出相应的数字图像处理算法和条码图像识读方法，并进一步提出一种基于图像辨识技术的条码识读纠错方案。
